Method: Textbringer::Window#enlarge

Defined in:
lib/textbringer/window.rb

#enlarge(n) ⇒ Object



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# File 'lib/textbringer/window.rb', line 553

def enlarge(n)
  if n > 0
    max_height = Window.lines -
      CONFIG[:window_min_height] * (@@list.size - 2) - 1
    new_lines = [lines + n, max_height].min
    needed_lines = new_lines - lines
    resize(new_lines, columns)
    i = @@list.index(self)
    indices = (i + 1).upto(@@list.size - 2).to_a +
      (i - 1).downto(0).to_a
    indices.each do |j|
      break if needed_lines == 0
      window = @@list[j]
      extended_lines = [
        window.lines - CONFIG[:window_min_height],
        needed_lines
      ].min
      window.resize(window.lines - extended_lines, window.columns)
      needed_lines -= extended_lines
    end
    y = 0
    @@list.each do |win|
      win.move(y, win.x)
      y += win.lines
    end
  elsif n < 0 && @@list.size > 2
    new_lines = [lines + n, CONFIG[:window_min_height]].max
    diff = lines - new_lines
    resize(new_lines, columns)
    i = @@list.index(self)
    if i < @@list.size - 2
      window = @@list[i + 1]
      window.move(window.y - diff, window.x)
    else
      window = @@list[i - 1]
      move(self.y + diff, self.x)
    end
    window.resize(window.lines + diff, window.columns)
  end
end